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Finding the Fourth Proportional to 61,027.96, 91,532.82 and 21,053.24

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Solution

The fourth proportional to 61,027.96, 91,532.82 and 21,053.24 is: 31,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,027.96 : 91,532.82 = 21,053.24 : x
  2. Step 2: Convert to fraction form
    61,027.96/91,532.82 = 21,053.24/x
  3. Step 3: Cross multiply
    61,027.96x = 91,532.82 × 21,053.24
  4. Step 4: Simplify right side
    61,027.96x = 1,927,062,427.34
  5. Step 5: Solve for x
    x = 1,927,062,427.34/61,027.96
  6. Step 6: Final answer
    x = 31,576.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.